# include<stdio.h>
# include<unistd.h>

int main()
{
    // 实验出R和S的进程状态
    int a = 0;
    int run_count = 0;
    while(1)
    {
        a = 1 + 1;
       printf("a:%d, run_count:%d\n", a, run_count++);
       sleep(1);
    
    }

    return 0;
}
